Figure 7.

Average grey value of the Lewis lung tumor blood vessels at different body sites. The average grey value of the foot tumor blood vessels was less than that in the ear tumor blood vessels (p < 0.05). The average grey value of blood vessels in the ear tumor decreased at days 1, 3 and 6 after A1-R bacteria treatment (p < 0.01). In the back tumor, the average grey value of blood vessels at days 3 and 6 after bacterial treatment showed decreases (p < 0.01). In the foot tumor, the average grey value of blood vessels at day 6 was significantly decreased (p < 0.01). Imaging was done with the FluorVivo imaging system (INDEC Biosystems). **p < 0.01 vs. ear tumor control group; ^##p < 0.01 vs. back tumor control group; ^&&p < 0.01 vs. foot tumor control group.